Form and movement in animals Worksheet-9

Form and movement in animals Worksheet-9

 

Multiple-Choice Question:

  1. The ______produces wave-like movements that push the snail's body forward. A trail of mucous is left behind when the snail crawls.

(A) shell                                            (B) liquid skeleton

(C) muscular foot                            (D) none of these

 

  1. Shell of snails  is made up of:

(A) Only calcium carbonate

(B) calcium carbonate and protein

(C) calcium carbonate and phosphate

(D) calcium carbonate within a matrix of fat molecules

 

  1. Snails have a pair of tentacles that bear __________at the tip.

(A) Eyes               (B) tongue           (C) receptor

 

  1. A cockroach's body is covered with a hard outer skeleton called:

(A) chitin             (B) cuticle            (C) cellulose

 

  1. Cockroaches have _____pairs of legs.

(A) three              (B) two                 (C) one                 (D) four

 

  1. Fish have _____ & ______ that help them in swimming.

(A) Fins and cartilages                    (B) Swim bladder and back bone

(C) Fins and a flexible back bone

 

  1. Most fish have a special structure called swim bladder. Which of the following is not correct?

(A) Swim bladder helps them to move up and down in water.

(B) It can be filled with air or emptied

(C) It helps them in self defence

 

  1. The bones of birds are _____.

(A) solid               (B) hollow            (C) thin                (D) None of these

 

  1. Birds don’t have bladders. Why?

(A) Accumulation of waste will make its body heavier

(B) Size of body of birds is very small

(C) Bladder is present in mammals only

(D) None of these

 

Answer Key:

  1. (C)
  2. (B)
  3. (A)
  4. (A)
  5. (A)
  6. (C)
  7. (C)
  8. (B)
  9. (A)